Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thanh toan » thanh san, tinh toan
thanh hoa » thanh pho
trung ha » trung hoc, trung tam, trung cap
ha dung » hai dung, kha dung, nha dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chieu sang)) - thanh trung ha dung trong ((thanh toan) OR (thanh hoa)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - thanh trung ha dung trong ((thanh toan) OR (thanh hoa)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chieu sang)) - thanh trung ha dung trong ((thanh toan) OR (thanh hoa)) tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu sang)) - thanh trung ha dung trong ((thanh toan) OR (thanh hoa)) tap*.